LS K7M-DR14UE 경제형 PLC

Model Code Decoding

K7M-DR14UE

K7M: CPU main unit of MASTER-K120S series
디: DC24V digital input
아르 자형: 릴레이 출력
14: 총 I/O 포인트 14 (8에서 + 6~하다)
유: Wide-range power supply AC85~264V (AC powered)
이자형: 경제 버전

구별: Standard model K7M-DR14U (without E). Hardware functions differ and cannot be directly replaced.

핵심 전기 사양

목	사양
총 I/O	14 전철기; 8에서 / 6~하다
디지털 입력	DC24V sink input (NPN), opto-isolated, X00~X07
릴레이 출력	6 relay outputs Y00~Y05; Resistive load per contact: AC250V/2A; DC30V/2A; Not applicable for high-frequency switching
전원공급장치	AC 85～264V wide-range AC input
프로그램 용량	2K 단계
Program Retention	Supercapacitor backup; No lithium battery required
Onboard Communication	RS485 전용 (No RS232 on economy model); Modbus RTU and 엘에스 proprietary protocol supported
확장 용량	맥스. 3 확장 모듈; Maximum overall I/O 120 전철기
High-speed Functions	No built-in high-speed counter, pulse output or PID control for economy version
설치	DIN 레일 장착
운영 환경	0～55°C, 결로가 없을 것, dust-proof industrial environment

Key Distinction & 선택 참고 사항
K7M-DR14UE (경제) VS K7M-DR14U (기준)

DR14UE: RS485 전용; No high-speed counter, pulse output or PID, 비용 효율적;

DR14U: RS232+RS485 onboard; supports high-speed counter, positioning and PID;

⚠️ Program logic is compatible, but hardware functions vary. Verify process requirements before replacement.

출력 유형: DR(계전기) vs DT(트랜지스터)

DR Relay: Suitable for solenoid valves and contactors, high-frequency pulse output unavailable;

DT Transistor: Used for servo/stepper pulse control.

프로그래밍 소프트웨어

Software Name: KGL-WIN (Windows-only)

Communication for download: RS485; LS dedicated programming cable required.

일반적인 응용 분야

Small standalone automation, conveyor equipment, packaging auxiliary machinery, simple assembly lines, HVAC 제어, logic control for low-voltage panel systems;

❌ Not suitable for: 서보 포지셔닝, high-frequency pulse output, closed-loop PID temperature control (hardware functions absent on economy model).

Reference Economy Models in the Same Series

K7M-DR10UE：6D/4C

K7M-DR14UE：8화/6일 (Model covered herein)

K7M-DR20UE：12D/8C

K7M-DR30UE：18DI/12DO

일반적인 문제 해결 & 배선 지침
Do not overload relay output contacts. Use intermediate relays for frequently switched loads;
RS485 wiring: Do not reverse A/B lines; install terminating resistors at both ends of the bus;
Digital input accepts DC24V NPN signals only; PNP sensors cannot be wired directly;
Programs are backed up by supercapacitor. Risk of program loss if power-off duration exceeds 72 시간.

Programming Software for LS K7M-DR14UE (MASTER-K120S)

Full Software Name

KGL-WIN (also written as KGLWIN)

✅ Sole compatible software; XG5000/XGWorks cannot be used for K120S series (XG software exclusively for XGT PLC series, do not confuse).

Recommended Version

Stable mainstream release: KGL-WIN V3.66

Supports full MASTER-K series: K10S/K80S/K120S(K7M)/K200S; fully compatible with K7M-DR14UE economy CPU.

Supported Programming Languages

LD Ladder Diagram (가장 널리 사용됨)

IL Instruction List

SFC Sequential Function Chart

❗ST Structured Text is not supported (software limitation of legacy version)

OS Compatibility Notes

Originally developed for Windows XP / 윈7

윈7: Install and run directly;

Win10 / Win11 (64-조금): Compatibility mode mandatory

작업: Right-click Setup.exe → Properties → Compatibility → Check Run this program in compatibility mode for Windows 7 + Run as administrator. Otherwise communication failures or software crashes may occur.

Communication Methods for Program Download

K7M-DR14UE economy version equipped with RS485 only, no RS232 port

Two download solutions:

USB to RS485 debugging cable (A/B wiring);
RS232/485 converter + LS dedicated download cable.

통신 프로토콜: LS proprietary Cnet protocol, 모드버스 RTU.

Important Comparison to Avoid Mistakes

PLC Series	프로그래밍 소프트웨어
MASTER-K120S (K7M-xxx)	KGL-WIN
XGT Series (XGK/XGI)	XG5000 / XGWorks

Additional Information

Software is free, no encryption, hardware dongle not required;

Supports online monitoring and manual I/O force function;

No offline simulation. Physical PLC hardware is mandatory for debugging.

If required, I can provide:

① KGL-WIN communication parameter setup procedure

② RS485 download cable pinout definition

③ Troubleshooting checklist for upload/download errors of DR14UE

Complete Introduction to KGL-WIN Operation Interface (LS MASTER-K120S / K7M Series)

Applicable Model: K7M-DR14UE, Recommended software version V3.66 Chinese Version

Important Premise: KGL-WIN is legacy Windows architecture software. No built-in offline simulation, physical PLC hardware required for debugging; only supports LD Ladder Diagram / IL Instruction List / SFC Sequential Function Chart, ST Structured Text not supported.

Global Interface Layout (Top to Bottom)
Menu Bar
Standard Speed Toolbar
Ladder Element Toolbar
Left Pane: Project Window (Project Tree)
Central Area: Program Main Editor Window
맨 아래: Message / Information Window
Bottommost: Status Bar
Detailed Function of Each Zone

2.1 Top Menu Bar (중국어 UI)

메뉴	High-frequency On-site Functions
프로젝트	새 프로젝트, open/save project; PLC model selection (MASTER-K120S mandatory); program & comment import/export; communication parameter setting, project options
Edit	복사, cut, paste, find(Ctrl+F), 바꾸다, jump to step(Ctrl+G), rung comment editing
View	Toggle Ladder Diagram ↔ Instruction List【Ctrl+Space】; display address/comment; cross-reference of operands; adjust ladder width
Online	Connect PLC, program upload, program download, RUN/STOP PLC, online monitor, force I/O, release force, clear PLC memory【Core debugging menu】
도구	Ladder element toolkit; program syntax check; operand monitoring table; print configuration
Window	Float layout, reset interface layout
돕다	취급 설명서, software version information

⚠️ Critical step for new project: Select MASTER-K120S as PLC model. Wrong selection leads to download failure for K7M-DR14UE.

2.2 Tier1: Standard Speed Toolbar

Common icons:

New Project｜Open｜Save｜Program Syntax Check｜Connect PLC｜Download Program｜Upload Program｜Start Monitor｜Stop Monitor｜Run PLC｜Stop PLC｜Find

2.3 Tier2: Ladder Element Toolbar (Core for Programming)

Only active under Ladder Diagram mode, shortcut keys:

F3: 상시 개방 접점

F4: 상시 폐쇄 접점

F5: Horizontal Line

F6: Vertical Line

F9: Output Coil

F10: Application Instructions (Timer T, Counter C, MOV transfer, arithmetic operations etc.)

Arrow cursor: Selection mode (move components)

2.4 Left Pane: Project Window (Project Tree)

Fixed four nodes after project creation:

Program

Double-click to open ladder editor; location for all logic rung programming.

매개변수

Not commonly used for DR14UE economy CPU without high-speed counter/PID; parameters for high-speed functions available for standard CPUs.

Variable/Comment

Add Chinese comments for X/Y/M/T/C/D operands; comments can be saved locally or downloaded to PLC for maintenance convenience.

I/O Assignment

Preview native I/O: X00~X07 (입력), Y00~Y05 (출력); preview address allocation of expansion modules.

2.5 Central Program Editor Window

Core workspace with multi-tab support:

Ladder Diagram Mode (가장 일반적인)

Program logic written by rung; conducting branches are highlighted automatically during online monitoring;

Instruction List Mode (니모닉)

Display mnemonic codes; convenient for instruction copy and error troubleshooting; toggle shortcut 【Ctrl+Space】;

SFC Sequential Function Chart

Step flow programming, less widely adopted.

Editing Mode Distinction

Offline Mode: Grey title bar; program editing only, no PLC connection;

Online Monitor Mode: Highlighted title bar, real-time operand refresh; I/O force available.

2.6 Bottom Message Window

Two primary functions:

Syntax error alert: Red text prompts address error, illegal instruction after compilation;
Communication log: Display connect/disconnect status, download progress, PLC fault codes.

2.7 Bottommost Status Bar (Indispensable for Debugging)

Information from left to right:

Step number and rung number of cursor position;
Communication Status: Offline / Online;
PLC operation mode: 달리다 / 멈추다;
Monitor enable status;
Insert / Overwrite mode;
Detected PLC model information.
Standard Operating Workflow (Step-by-step Operation)
Project → New Project → Select Model【MASTER-K120S】
Double-click Program under left project tree to open ladder editor
Program logic with ladder element toolbar
Click Program Check to eliminate syntax errors
Project → Communication Setting: Select COM port (corresponding COM number of USB-to-485 adapter), protocol CNET
Online → Connect PLC
Online → Download Program (PLC must be under STOP mode)
Online → Run PLC, enable monitor to verify logic execution
Operation Pitfalls Specifically for K7M-DR14UE (Economy Version)
Do not configure high-speed counter, pulse output or PID parameters in software; hardware does not support, download alarm will occur;
DR14UE only has RS485 port; do not select RS232 in communication settings;
Run Program Check before every download;
Offline simulation button is invalid; physical PLC hardware required;
Software prone to crash on Win10/Win11: Set compatibility mode Windows7 + run as administrator.
Frequently Used Shortcut Keys